oh my

1. an expresion of suprise.
2. a response to a suprising situation/coment/picture.
3. a conversation scapegoat.
4. a sarcastic reponse.
5. see oh dear
6. see jonathan costa
7. an old person term.

Exclamation of surprise

when you are going to drink you call it oh my

you say this when you are asking about whats going on this weekend (party wise).

downtown miami slang: the utmost form of flattery, particular spoken when a smoking hot woman walks by

Used when the shit hits the fan and both "Oh my god!" and "Oh no!" are required.

Generally used by girls from Stevenage and guys who work for large Retail Instituations, ie Tesco

A meme-level expression used in response to anything sexually pleasing/enticing, whether it is an image, video, song, or written content.

It is most commonly used as a simple image macro featuring George Takei; the meme itself probably originated from instances of Takei saying "Oh, my!" in response to sexy stuff, especially on the Howard Stern show.